probe-scsi-all Device Naming (OpenBoot)

The output displayed by probe-scsi-all lists all SCSI devices in the server and provides a basic set of information about each device. When analyzing the probe-scsi-all output, look for the following data fields that are different names for the same device. You must use a specific type of name in different commands.

Entity Name Definition Target Each SAS or SATA drive is assigned a unique Target ID. SASDeviceName This is the WWN value assigned to a SAS drive by the manufacturer. Oracle Solaris recognizes this name. SASAddress This is the WWN value assigned to a SCSI device that is recognized by the OpenBoot firmware. PhyNum This is a hexidecimal ID of the controller port that is attached to the target drive. VolumeDeviceName (when a RAID volume is configured) This is the WWN value assigned to a RAID volume that is recognized by Oracle Solaris. The VolumeDeviceName replaces the SASDeviceName of every SCSI device contained in the RAID volume. Use the VolumeDeviceName entity to determine the correct target in a RAID volume, or when the server is configured with an optional internal RAID HBA controller. VolumeWWID (when a RAID volume is configured) This is the WWN-based value assigned to a RAID volume that is recognized by the OpenBoot firmware. VolumeWWID replaces the SASAddress of every SCSI device contained in the RAID volume.

At a high level, the WWN mapping process consists of the following stages:

1. Identify the physical location of the hard drive that is to be the target of the operation.

2. Then identify the controller port that is attached to that physical location.

3. Finally, find the WWN-based device name of the drive attached to that controller port.

Related Information

• WWN Syntax

• Identify a Disk Slot (Oracle Solaris)

• WWN Syntax in an Oracle Solaris 10 Installation on an Individual Drive

• WWN Syntax in an Oracle Solaris 10 Installation on a RAID Volume